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CSST gas line

Ultradog MN

Well-known member
Joined
Jan 20, 2024
Messages
814
Location
Twin Cities
CSST = Corrugated Stainless Steel Tubing

Have natural gas in the house.
Want to run a line to the detached garage for some heat.
Two questions:
1) Can CSST be direct bury?
2) If so how deep must it be buried?
Thank you.
 

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chinboys

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Joined
Jun 20, 2011
Messages
434
I would ask your local building codes department about the type of CSST you have or want to use.
And you may need license or certification to do it yourself.

A short blurb about this...
Installation of CSST is not allowed underground (directly buried) unless it is of a type specially designed and listed for underground applications [see Commentary Figure G2414.5.3(9)]. Some manufacturers’ installation instructions allow CSST to be “indirectly” buried by installing the tubing within a nonmetallic, water-tight conduit, such as PVC, PE or ABS plastic pipe. Other manufacturers may offer CSST with an integral casing and sealing fittings specifically designed for underground installation. See Sections G2415.6 and G2415.12 through G2415.14 regarding piping buried in slabs and beneath buildings.
 

PoorUB

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Mar 29, 2021
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Location
Fargo, ND

Jackfre

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Dec 26, 2010
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Location
N CA
PoorUB is correct here. The poly is much less expensive, easier to deal with and what the gas companies use. I would suggest that you oversize this line. Better to have to much capacity in the ground than want to add gas load and not have the pipe in the ground to carry that load.
 
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OP
U

Ultradog MN

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Joined
Jan 20, 2024
Messages
814
Location
Twin Cities
Thanks fellas.
I talked to Centerpoint Energy this morning.
They were able to look up my address and told me based on my present nat gas load I will need to upsize my meter and that will require a new run to the street and moving the meter from the basement to outside. Won't be cheap (~ $1300) to do but I want heat in my shop and we want to add a second clothes dryer (stackable W/D) on the 1st floor so we don't have to go to the basement to do laundry when were older.
When they come to do the job I will pester them with some questions about running the line to the garage and get the straight dope from them.
 

PoorUB

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Joined
Mar 29, 2021
Messages
11,794
Location
Fargo, ND
When they come to do the job I will pester them with some questions about running the line to the garage and get the straight dope from them.
I have a buddy that went through a similar deal. He didn't have gas at his house and had the utility install a meter. When the guys were there to bore in the gas line he slipped the guys a couple hundred $$ and they bored in pipe from the meter to his garage too. Not that I would recommend such a thing!;)
 
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